Question at position 20 My sister (I) (ordering / are ordering / is ordering / order / not ordering) a lemonade from a nearby stand before we continue walking.is orderingare orderingorderingordernot order单项选择题
A
is ordering
B
are ordering
C
ordering
D
order
E
not order

Question

Question at position 20 My sister (I) (ordering / are ordering / is ordering / order / not ordering) a lemonade from a nearby stand before we continue walking.is orderingare orderingorderingordernot order单项选择题

A

is ordering

B

are ordering

C

ordering

D

order

E

not order

BlackTom AI · Accepted Answer

First, let's restate the question and the options to focus on what needs to agree in tense and subject-verb form.
Question: My sister (I) (ordering / are ordering / is ordering / order / not ordering) a lemonade from a nearby stand before we continue walking.
Answer options: ["is ordering", "are ordering", "ordering", "order", "not order"]

Option 1: is ordering. This option uses the singular subject “My sister (I)” with the present continuous tense (is ordering), which is the correct agreement for a singular subject in a simple present ongoing action. The phrase reads naturally as: “My sister is ordering a lemonade,” which fits the context of an action taking place before continuing to walk.

Option 2: are ordering. The plural verb form “are ordering” would be required if the subject were plural (e.g., “My sister and I are ordering”), but since the intended subject is singular here, this choice wears the clash of number and cannot be correct in standard English subject–verb agreement.

Option 3: ordering. This is a present participle form without an auxiliary, which leaves the clause ungrammatical in the present continuous tense. In many standard sentence constructions, a form like “is ordering” or “are ordering” is needed to indicate ongoing action, so simply using “ordering” is incomplete.

Option 4: order. This base form would be appropriate after another auxiliary (for example, “will order” or after the command form), but it does not fit a present continuous sentence structure about an ongoing action, making it incorrect here.

Option 5: not order. This negative base form similarly lacks an auxiliary or gerund construction to express ongoing action, so it incorrectly conveys the meaning and is not grammatical in this context.

Overall, evaluating subject-verb agreement and tense shows that Option 1 (is ordering) correctly pairs the singular subject with the present continuous form, while the other options fail to align with standard English grammar for this sentence.